I seem to have gotten a cut on my penis below the head on the underside, and when I went to urinate the stimulation caused it to bleed a little, but when I was done it stopped bleeding. I tried to put hydrogen peroxide on it, but it didnt seem to help, whenever I messed with it to try and look at the cut it would bleed, but when I stopped messing with it, the bleeding would stop. It looks like its coming from the vein on the underside of my penis. I'm not too worried to go to the doctor yet as it doesnt bleed when Its left alone. I was wondering if people have had problems with any sort of cut on their penis that has acted like this?
Sometimes it takes awhile for cuts or lacerations on the penis to heal just because of the nature of the penis. The skin is constantly moving and can't really stay still enough to heal quickly. As long as you're not in any pain or discomfort and you're keeping it clean, you should have no problem.
Clean it every time you urinate so as not to get it infected. Simply using toilet paper should suffice. But be sure to use soap and water at least once a day.
Since it's not continuously bleeding, I doubt you hit the vein, sounds like you just scratched the surface. Just leave it alone and it'll heal on it's own. The more you mess with it, the longer it'll take to heal.